The format of phone numbers in Australia has changed over time to allow the expansion of customer base as technology has increased.
Video Former Australian dialling codes
Pengenalan kode area (pra-1990)
The introduction of subscriber call calls is slow, partly due to exchange distance in some areas and partly due to the use of manual exchanges well into the 1980s. Initially, the calling code covers a very small area, sometimes just one exchange, but gradually swaps the conglomerate into a large area code. Code length varies; in early 1971, some areas had a seven-digit area code, while the nation's capital had a double-digit area code. By 1989, the system had been standardized into three-digit code across the board, with two digits coded in major cities. Only Kangaroo Island maintains its four-digit code.
The following leading zero digits are selected to represent a rough geographical area, with the following numbers:
- 00 : Tasmania (but also used for emergency (000), freecall (008), premium rate (0055), international access (0011) and other special numbers)
- 01 : Mobile, pager, information, and operator services
- 02 : Sydney
- 03 : Melbourne
- 04 : The regional area of ​​New South Wales is about 250 km from Sydney (from 1992 041x is used for GSM mobile phones)
- 05 : Victoria regional area
- 06 : Australian Capital Territory and regional territory of New South Wales outside code 04
- 07 ... Queensland
- 08 ... South Australia and Northern Region
- 09 ... Western Australia, Christmas Island * and Cocos Keeling Islands *
* Until 1994, this region is not part of the Australian numbering plan, and instead uses code 672, for Australia's External Territories on Norfolk Island and Australian Antarctic Territory. The numbers used before 1994 are now in the range number 08 9162 for Christmas Island and 08 9164 for Cocos Keeling Islands, but other ranges are now used on the islands (at least in theory). The original phone number format for the islands is 672 2 xxxx for Christmas Island and 672 4 xxxx for Cocos Islands.
In 1994, there were 6 two-digit area codes covering Sydney (02), Melbourne (03), Canberra (06), Brisbane (07), Adelaide (08) and Perth (09), 48 three-digit area codes, 002) includes Hobart to (099) covering west-western Western Australia, and a four-digit area code, Kangaroo Island (0848), which was not included in the larger area code before 1994.
To call these numbers from abroad, one is eliminated zero up front. In case of numbers in the range of 00 , only the first zero is omitted: Hobart is 61 02 xxxxx - this is a potential cause of confusion with Sydney area code ( 61Ã, xxxÃ, xxxx or 61Ã, 2Ã, xx xxxx ). The 007 series is used for satellite phones and "0G" mobile phones. Even up to 2005 there was confusion: the prefix 61Ã,78 and 61Ã,79 were listed as "mobile numbers" at some call rates, even though the prefix was 61Ã,7x and has not been used for more than a decade.
At the end of March 1990, the Canberra area code changed from (062) to (06) by integrating 2 into subscriber numbers, allowing 200,000 more numbers to register.
Maps Former Australian dialling codes
Renumbering (1994-1998)
In Australia, as in other countries, due to increased customer service uptake such as additional home phone lines, cell phones and other services, previous numbering plans are being extended to the limit. It was decided to reduce the number of area codes and extend all customer numbers by one or two digits. This happened between 1994 and 1998, and was carried out progressively to ensure the least inconvenience and confusion. Gradual changes also to avoid number clashes, situations where two customers in two completely different locations technically have the same phone number when contacted in its entirety. The first number converted into eight digits is a number in the range of 99x xxxx and 99 xxxx on the outskirts of Mona Vale in Sydney, all of which became 999x xxxx or 9999 xxxx on July 25, 1994. The last code changed to eight digits is the Queensland Code (070), ( 071), (076), (077) and (079), all of which were changed to (07) 4yxx xxxx on November 10, 1997.
In most cases, the previous area code is entered into a new customer ID: the Canberra number starts from (06) 2xx xxxx to (02) 62xx xxxx, the number in the Northern Territory changes from (089) xx xxxx to (08) 89xx xxxx, and so on. The four main exemptions are the two cities in Sydney and Melbourne, which add 9 to the initial number of subscribers; Tasmania, which is part of (03) 6xxx xxxx range; and Queensland, which spread its territorial codes across a wide range so that (07) 3... includes Brisbane, (07) 5... encompassing the perimeter including Esk and the Gold and Sunshine beaches, and (07) the rest of the country. In Melbourne and Sydney, the new non-geographic xxxxx and xxxxx ranges and 91xx are available. Canberra also got a new xxxx xxxxx range. Mobile phone numbers in the range of 01x have 4 entered into the area code (ie 012 345 678 to 0412 345 678). Until November 1998, only mobile numbers were available in the 040x and 041x ranges, to allow time for the existing 04x area code (then the New South Welsh region code) to convert to (02) the xxxx 4xxx number.
During the period of change, Australians are often told that they are required to contact all the phone numbers they call, including the area code, even though the number may be within the same area code. For example, a caller in Sydney with (02) 9xxx xxxx needs to call (02) 49xx xxxx to call the number in Newcastle, even though the area code is the same. This is to avoid possible clashes. Although this practice officially ceased on March 1, 1999, many still believe that they are required to dial area codes outside of their own phone book area, but this is not the case.
Former area code and system changes
Note: the range of numbers provided below does not include all current numbers in a certain area. See the Australian telephone numbering plan for more information.
Small changes
Kangaroo Island is the only area in Australia that is not integrated into the larger area code before the change to an eight-digit phone numbering, and has only a four-digit area code (0848). The Kangaroo Island area is entered into (08) 855x number xxxx number with significant changes to customer number (eg (0848) 21000 to (08) 8553 4000).
To prevent the wrong connection during the period of change, the number that will have the first digit of the old form equal to the first digit of the new form should be changed. For example, (043) 43 2123 may be confused with (02) 4321 2345 (which will be used for (043) 21 2345) during the change. To prevent this, before the change to the eight digits, the local number is changed, so that, in the example, (043) 44 2123 would be (043) 44 2123, and then (02) 4344 2123. A list of all numbers changed in this way is indicated on table below.
See also
- Phone numbers in Australia
References
- list of ITU allocations
External links
- 8-digit numbering on ACMA's official website
Source of the article : Wikipedia
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